Matching Items (8)

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A Review of the Human Vermiform Appendix and its Proposed Function

Description

Since its discovery in 1524, many people have characterized the vermiform appendix. Charles Darwin considered the human appendix to be a vestige and a useless structure. Others at the time

Since its discovery in 1524, many people have characterized the vermiform appendix. Charles Darwin considered the human appendix to be a vestige and a useless structure. Others at the time opposed this hypothesis. However, Darwin's hypothesis became prevalent one until recently when there became a renewed interest in the appendix because of advancements in microscopes, knowledge of the immune system, and phylogenetics. In this review, I will argue that the vermiform appendix, although still not completely understood, has important functions. First, I will give the anatomy of the appendix. I will discuss the comparative anatomy between different animals and also primates. I will address the effects of appendicitis and appendectomy. I will give background on vestigial structures and will discuss if the appendix is a vestige. Following, I will review the evolution of the appendix. Finally, I will argue that the function of the appendix is as an immune organ, including discussion of gut-associated lymphoid tissue (GALT), development of lymphoid follicles in GALT and their comparison within different organs, Immunoglobulin A (IgA) function in the gut, biofilms as evidence that the appendix is a safe-house for beneficial bacteria, re-inoculation of the bowel, and protection against recurring infection. I will conclude with future studies that should be conducted to further our understanding of the vermiform appendix.

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Created

Date Created
  • 2018-05

A Comprehensive Review of the Effects of Immigration on Development in Early and Middle Childhood

Description

Immigration becomes relevant in policies and U.S. culture as globalization spreads. The physical relocation affects children’s development because they are growing up during uncertain times and they could potentially miss

Immigration becomes relevant in policies and U.S. culture as globalization spreads. The physical relocation affects children’s development because they are growing up during uncertain times and they could potentially miss important milestones during childhood if the effects of immigration are not understood and explored. This paper aims to assess children’s physical, psychosocial, and academic trends and how they compare to native citizens of the United States. Law, research, medicine, and education are all relevant realms that could work on understanding the immigrant children’s problems, as well as help bolster any advantages and skills they might have.

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Created

Date Created
  • 2020-05

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Fluoroquinolone Toxicity in Mammals and Its Underlying Mechanism: A Literature Review

Description

Fluoroquinolone antibiotics have been known to cause severe, multisystem adverse side effects, termed fluoroquinolone toxicity (FQT). This toxicity syndrome can present with adverse effects that vary from individual to individual,

Fluoroquinolone antibiotics have been known to cause severe, multisystem adverse side effects, termed fluoroquinolone toxicity (FQT). This toxicity syndrome can present with adverse effects that vary from individual to individual, including effects on the musculoskeletal and nervous systems, among others. The mechanism behind FQT in mammals is not known, although various possibilities have been investigated. Among the hypothesized FQT mechanisms, those that could potentially explain multisystem toxicity include off-target mammalian topoisomerase interactions, increased production of reactive oxygen species, oxidative stress, and oxidative damage, as well as metal chelating properties of FQs. This review presents relevant information on fluoroquinolone antibiotics and FQT and explores the mechanisms that have been proposed. A fluoroquinolone-induced increase in reactive oxygen species and subsequent oxidative stress and damage presents the strongest evidence to explain this multisystem toxicity syndrome. Understanding the mechanism of FQT in mammals is important to aid in the prevention and treatment of this condition.

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Created

Date Created
  • 2021-05

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Creativity in Progress: An Analysis of Contemporary American Poetry

Description

This project focuses on techniques contemporary American poets use in their work. Ten different poetry collections are analyzed for dominant writing styles and techniques, which I then apply to my

This project focuses on techniques contemporary American poets use in their work. Ten different poetry collections are analyzed for dominant writing styles and techniques, which I then apply to my own poems, concentrating on modeling that particular poet. I then reflect on those poems through an evaluation of my writing process, how those techniques were implemented, and how they affected the poem. In addition to these reviews and reflections, I also wrote three articles about the literary community and what I've learned from my interactions in that community. All these materials are organized into a website, which shows the connections between the different writings via links and menus. Creating this website brings all the materials together to demonstrate my growth as a poet, writer, and designer. This heavy focus on poetry and analysis has helped sharpen my critical thinking skills and has better prepared me for a career in design and journalism.

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Created

Date Created
  • 2015-05

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The Process and Analysis of Film Reviewing

Description

"The Process and Analysis of Film Reviewing" is a two-part project that discovers what goes into the film reviewing process and what produces a good film review. A film review

"The Process and Analysis of Film Reviewing" is a two-part project that discovers what goes into the film reviewing process and what produces a good film review. A film review website entitled "Reel Reviews" (reelfilmreviews.com) was created, which features original content such as film reviews, trailers and information about special features and events relevant to the film industry. The paper portion of the project takes an analytical look at the current state of the film reviewing world and addresses the changes in technology that have an impact on how film reviewing is done.

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Created

Date Created
  • 2015-05

Integrating Art and Science: Evolution of the Beak

Description

Evolution is a powerful process that acts on features as organisms adapt to fill a variety of niches. It is visible in the emergence of the beak in the fossil

Evolution is a powerful process that acts on features as organisms adapt to fill a variety of niches. It is visible in the emergence of the beak in the fossil record, through a number of small changes over time. To explain and convey these changes to a general audience, I produced an art book combining my review of bird beak evolution with art. The intent was to present evolution in an informative, visual, and engaging manner that a general audience would be able to understand.

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Created

Date Created
  • 2020-05

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The Association Between Sleep Quality and Asthma in Middle-school Aged Children

Description

Asthma is one of the most common chronic diseases affecting children, and investigators have identified a number of risk factors that worsen asthma symptoms. Most prior studies have concluded that

Asthma is one of the most common chronic diseases affecting children, and investigators have identified a number of risk factors that worsen asthma symptoms. Most prior studies have concluded that there is an association between one risk factor, poor sleep quality, and asthma; however, whether sleep quality predicts future asthma symptoms, asthma symptoms predict future sleep quality, or the relation is reciprocal is still unclear. The methodology of studies examining the asthma-sleep association has consisted of actigraphy and parent report to determine children's sleep duration and sleep efficiency, and lung function assessments with a spirometer on the participants to determine children's overall lung function. The purpose of the proposed study is to determine the strength of the cross-sectional and longitudinal associations between indicators of sleep quality and asthma. The proposed study plans to use a combination of actigraphy, sleep diaries, and lung function assessments using a spirometer to determine sleep quality and lung function, respectively. Future directions include determining the directionality of the association between sleep quality and asthma as well as strength of association.

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Created

Date Created
  • 2018-12

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Non-invasive methods to detect underground leaks

Description

Water is one of, if not the most valuable natural resource but extremely challenging to manage. According to old research in the field, many Water Distribution Systems (WDSs) around the

Water is one of, if not the most valuable natural resource but extremely challenging to manage. According to old research in the field, many Water Distribution Systems (WDSs) around the world lose above 40 percent of clean water pumped into the distribution system because of unfortune leaks before the water gets anywhere from the fresh water resources. By reducing the amount of water leaked, distribution system managers can reduce the amount of money, resources, and energy wasted on finding and repairing the leaks, and then producing and pumping water, increase system reliability and more easily satisfy present and future needs of all consumers. But having access to this information pre-amatively and sufficiently can be complex and time taking. For large companies like SRP who are moving tonnes of water from various water bodies around phoenix area, it is even more crucial to efficiently locate and characterize the leaks. And phoenix being a busy city, it is not easy to go start digging everywhere, whenever a loss in pressure is reported at the destination.

Keeping this in mind, non-invasive methods to geo-physically work on it needs attention. There is a lot of potential in this field of work to even help with environmental crisis as this helps in places where water theft is big and is conducted through leaks in the distribution system. Methods like Acoustic sensing and ground penetrating radars have shown good results, and the work done in this thesis helps us realise the limitations and extents to which they can be used in the phoenix are.

The concrete pipes used by SRP are would not be able to generate enough acoustic signals to be affectively picked up by a hydrophone at the opening, so the GPR would be helpful in finding the initial location of the leak, as the water around the leak would make the sand wet and hence show a clear difference on the GPR. After that the frequency spectrum can be checked around that point which would show difference from another where we know a leak is not present.

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Agent

Created

Date Created
  • 2019